If he's going to want to do it in the shower or tub (warm water promotes blood flow), don't get one with a gauge. Also, save the money and go with with a trigger handle. The bulbs tend to be PITAs. Some folks like the gauge because it gives them something to look at as guideline, but since it varies from person to person, those guidelines don't really mean much.

I included a vote for the Mighty man, but if he's got the potential to be longer than 7" he'll have an issue with it. It's covered in my review of it.

If he's going to want to do it in the shower or tub (warm water promotes blood flow), don't get one with a gauge. Also, save the money and go with with a trigger handle. The bulbs tend to be PITAs. Some folks like the gauge because it gives
...

If he's going to want to do it in the shower or tub (warm water promotes blood flow), don't get one with a gauge. Also, save the money and go with with a trigger handle. The bulbs tend to be PITAs. Some folks like the gauge because it gives them something to look at as guideline, but since it varies from person to person, those guidelines don't really mean much.

I included a vote for the Mighty man, but if he's got the potential to be longer than 7" he'll have an issue with it. It's covered in my review of it.